An EQ (equaliser) pedal allows guitarists to shape their tone by adjusting the levels of different frequency ranges. Most EQ pedals feature multiple frequency bands—typically graphic EQs with sliders for specific frequencies or parametric EQs with adjustable frequency selection and Q width. These pedals can be used to cut unwanted frequencies, boost mids for solos, tighten bass response, or tame harsh treble. EQ is especially useful for fine-tuning distortion, compensating for tonal differences between guitars, or adapting to different amplifiers. Popular EQ pedals include the Boss GE-7, MXR Ten Band EQ, and Source Audio EQ2, making them an essential tool for tone control.